Emergency services were called to a collision between a tractor and a Mercedes car on the outskirts of Ellon this morning.
The accident happened around 10am on the A920 road to Pitmedden, a short distance from the town.
The tractor overturned and diversions were put in place for a time.
It is understood the tractor driver sustained minor injuries. The male driver of the black Mercedes was unhurt.
Police, fire and ambulance teams attended the incident.
Two fire units from Ellon were called in and a specialist environmental unit from Aberdeen to deal with a chemical spill on the road.